New York City, the most populous city in the United States the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and entertainment. The home of the United Nations Headquarters, New York is an important center for international affairs and is widely deemed the cultural capital of the world. The city is also referred to as New York City or the City of New York to distinguish it from the state of New York, of which it is a part.
Many districts and landmarks in New York City have become well known to its approximately 50 million annual visitors. Times Square is iconified as "The Crossroads of the World", is the brightly illuminated hub of the Broadway theater district. It's one of the world's busiest pedestrian intersections, and a major center of the world's entertainment industry. The city hosts many world renowned bridges, skyscrapers, and parks. New York City's financial district, anchored by Wall Street in Lower Manhattan, functions as the financial capital of the world and is home to the New York Stock Exchange, the world's largest stock exchange by total market capitalization of its listed companies. Manhattan's real estate market is among the most expensive in the world. Manhattan's Chinatown incorporates the highest concentration of Chinese people in the Western Hemisphere. Unlike most global rapid transit systems, the New York City Subway provides 24/7 service. Numerous colleges and universities are located in New York, including Columbia University, New York University, and Rockefeller University, which are ranked among the top 50 in the world.